Daily Flow: Product backlog refinement and why is it encouraged?

Product Backlog Refinement is an activity in (single team) Scrum, with supporting events for multi-team Scrum in Nexus and LeSS. Why is it encouraged? Is there something equivalent in Kanban? 0:00 Introduction 0:27 Product backlog refinement in Scrum 8:03 How do we obtain a common understanding 9:06 A nerve centre for discovery 15:00 Optional practices 15:11 Misunderstandings of product backlog refinement Watch this in the video format here: https://www.youtube.com/watch?v=Gti64RAlVL4